Daleae imagines: An illustrated revision of Erazurizia, Psorothamnus, Marina, and Dalea Memoirs of the New York Botanical Garden, Vol. 27

an exhaustive, beautifully done, and only somewhat outdated treatise, fully illustrated, still the best reference for Dalea and Psorothamnus in the sections of Nevada not included in the Intermountain Flora region. Available through the Scientific Publications Department of the New York Botanical Garden